Malicious PDF — malware analysis report

Static analysis result for SHA-256 84bb8f233f5f2ce2…

MALICIOUS

PDF

73.2 KB Created: 2021-02-25 07:27:31 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: a20fed22f4599985147f0c34aa8af818 SHA-1: a3f6416e46e02c21d38abc9ff86551ebeea5f5ad SHA-256: 84bb8f233f5f2ce2aae09594f193fc9b8a4f88a7be20fc6ff17c2289abe45d07
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://seumenha.ru/award?keyword=online+autocad+jobs+work+home+in+chennai PDF link annotation
    • http://msertis.xyz/20880333697skb62.pdfIn PDF document text
    • https://xuzitimezavut.weebly.com/uploads/1/3/1/8/131856372/nifovirusukatazaja.pdfIn PDF document text
    • https://pojekemo.weebly.com/uploads/1/3/4/4/134469054/wubure.pdfIn PDF document text
    • http://lebizifijafaxim.medianewsonline.com/data_science_bootcamp_dc.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417305/normal_600bc9fac9e32.pdfIn PDF document text
    • https://giruwaferelesed.weebly.com/uploads/1/3/4/8/134850821/4084605.pdfIn PDF document text
    • http://hairsprof.ru/how_to_make_someone_fall_in_love_with_you_manifestlcvqa.pdfIn PDF document text
    • https://static.s123-cdn-static.com/uploads/4459625/normal_5fc87ac7d550f.pdfIn PDF document text
    • http://itgermany.net/jemawezogejivatox8v8k.pdfIn PDF document text
    • http://lejebodaz.22web.org/nokufatunuzat.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4414871/normal_60170e9f281c6.pdfIn PDF document text
    • http://barcaporirternet-interbank-pe.com/alcast_eso_leveling_guideh4rh7.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4417830/normal_6017a3dbcf767.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4369657/normal_6021f3f7e50a9.pdfIn PDF document text
    • https://xavapijiwo.weebly.com/uploads/1/3/3/9/133997403/22374f314.pdfIn PDF document text
    • http://wijasagasipode.getenjoyment.net/breadman_ultimate_instructions.pdfIn PDF document text
    • http://zonerokemub.getenjoyment.net/total_gym_tv_discount_code.pdfIn PDF document text
    • https://nukanepinax.weebly.com/uploads/1/3/1/4/131454046/figaki-kaxaxufuno.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • http://waxodomopupu.epizy.com/47723104532.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000d27a.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xD27A 5460 bytes
SHA-256: e10d7250055f996ab2e4e68c5f52dcd29c1282ce7b1f42440319442b08a0b7b1
font_01_sfnt_off0000e4ed.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xE4ED 10624 bytes
SHA-256: f20fc6aaf5531ead9be2c659cbd28b5e1e1ea013f8cdcfa304652ed76b3c7a12
font_02_sfnt_off00010930.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x10930 4324 bytes
SHA-256: 4fcfa7c68d76e23b667942a3ac892d2d5d88346478daafc61479ad4df4af3dd3